Two Classmates Ask You to Spend a Couple of Hours

Multiple Choice

Two classmates ask you to spend a couple of hours helping them prepare for a chemistry test.According to social exchange theory,you would be most likely to help them if

A) your parents helped you study for tests when you were younger.
B) you know you would feel terribly guilty for refusing their request.
C) you know that someone else helped them prepare for an earlier test.
D) your classmates cannot afford to pay for a private tutor.